qemu/linux-user-Fake-proc-cpuinfo.patch

From: Alexander Graf <agraf@suse.de>
Date: Mon, 23 Jul 2012 10:24:14 +0200
Subject: linux-user: Fake /proc/cpuinfo
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Fedora 17 for ARM reads /proc/cpuinfo and fails if it doesn't contain
ARM related contents. This patch implements a quick hack to expose real
/proc/cpuinfo data taken from a real world machine.

The real fix would be to generate at least the flags automatically based
on the selected CPU. Please do not submit this patch upstream until this
has happened.

Signed-off-by: Alexander Graf <agraf@suse.de>
[AF: Rebased for v1.6 and v1.7]
Signed-off-by: Andreas Färber <afaerber@suse.de>
[DF: Restructured it a bit, to make ARM look like other arch-es]
Signed-off-by: Dario Faggioli <dfaggioli@suse.com>
---
 linux-user/syscall.c | 26 ++++++++++++++++++++++++--
 1 file changed, 24 insertions(+), 2 deletions(-)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index f4091212027c254a19dc871a675d..b746511fe5ba1c03cf44a14ed811 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -8157,7 +8157,8 @@ static int is_proc_myself(const char *filename, const char *entry)
 }
 
 #if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN || \
-    defined(TARGET_SPARC) || defined(TARGET_M68K) || defined(TARGET_HPPA)
+    defined(TARGET_SPARC) || defined(TARGET_M68K) || \
+    defined(TARGET_HPPA) || defined(TARGET_ARM)
 static int is_proc(const char *filename, const char *entry)
 {
     return strcmp(filename, entry) == 0;
@@ -8229,6 +8230,27 @@ static int open_cpuinfo(CPUArchState *cpu_env, int fd)
 }
 #endif
 
+#if defined(TARGET_ARM)
+static int open_cpuinfo(CPUArchState *cpu_env, int fd)
+{
+    dprintf(fd,
+"Processor       : ARMv7 Processor rev 5 (v7l)\n"
+"BogoMIPS        : 799.53\n"
+"Features        : swp half thumb fastmult vfp edsp thumbee neon vfpv3\n"
+"CPU implementer : 0x41\n"
+"CPU architecture: 7\n"
+"CPU variant     : 0x2\n"
+"CPU part        : 0xc08\n"
+"CPU revision    : 5\n"
+"\n"
+"Hardware        : Genesi Efika MX (Smarttop)\n"
+"Revision        : 51030\n"
+"Serial          : 0000000000000000\n");
+    return 0;
+}
+#endif
+
+
 #if defined(TARGET_M68K)
 static int open_hardware(CPUArchState *cpu_env, int fd)
 {
@@ -8253,7 +8275,7 @@ static int do_openat(CPUArchState *cpu_env, int dirfd, const char *pathname, int
 #if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN
         { "/proc/net/route", open_net_route, is_proc },
 #endif
-#if defined(TARGET_SPARC) || defined(TARGET_HPPA)
+#if defined(TARGET_SPARC) || defined(TARGET_HPPA) || defined(TARGET_ARM)
         { "/proc/cpuinfo", open_cpuinfo, is_proc },
 #endif
 #if defined(TARGET_M68K)